B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
B03D 1/00 (2006.01) B01F 3/04 (2006.01) B01F 5/06 (2006.01) B03D 1/14 (2006.01) B03D 1/24 (2006.01) B05B 1/00 (2006.01) C02F 1/24 (2006.01) B01F 5/04 (2006.01)
Patent
CA 2398259
Process for separating impurities from a suspension by flotation, covering aeration of a liquid with gas until it is saturated, followed by expansion of the liquid saturated with gas, during which gas bubbles form. In order to provide improved conditions for setting the optimum size and quantity of bubbles in the suspension and thus make the process more effective, the liquid saturated with gas expands separately and before the liquid containing the gas bubbles is added to the suspension with the impurities. The device for separating impurities from a suspension by flotation, covering at least devices for aerating a liquid with gas until the liquid is saturated, for then expanding the liquid saturated with gas, during which gas bubbles form, and for adding the liquid with gas bubbles to the suspension and feeding it to a flotation cell, is characterised by the device (4) for expansion of the liquid being arranged separately from the device (2) for adding the liquid with gas bubbles to the suspension and separately from the flotation cell (6).
Gabl Helmuth
Scherzinger Bernhard
Andritz Ag
Marks & Clerk
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